b) Minimum revolving resistance: a high-level welding processing ability make the tolerance within minimum scope. In addition to high quality bearings, the pulley will have ideal static and dynamic balance

c) High loading capacity: the pulley shell and bearing housing are well welded together as a whole high strength structure. Thick pulley shell can absorbs more stress as well.

d) Water Proof, Dust proof, Leak Proof

e) Economic maintainence and long service life: less deflection of shaft and less stress on bearings give pulley a longer life.